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FAG
K3780-H
Tapered roller bearing K3780-H
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Main Dimensions & Performance Data
d
50.8 mm
Bore diameter
B
30.302 mm
Width, inner ring
Cr
98,800 N
Basic dynamic load rating, radial
C0r
137,000 N
Basic static load rating, radial
Cur
17,300 N
Fatigue load limit, radial
nG
6,160 1/min
Limiting speed
≈m
0.56 kg
Weight

Mounting dimensions
da max
58 mm
Maximum diameter of shaft shoulder
db min
64 mm
Minimum diameter of shaft shoulder
CRa min
1.5 mm
Minimum axial space
CRb max
1.5 mm
Maximum axial space
ra max
3.6 mm
Maximum fillet radius of shaft

Dimensions
r1, 2 min
3.6 mm
Minimum chamfer dimension of inner ring back face
a
22 mm
Distance between the apexes of the pressure cones
d1
72.3 mm
Guidance rib diameter of inner ring
T1
30.162 mm
Width, total of inner subunit assembled with a master outer ring
E
76.244 mm
Inside diameter of outer ring back face
α
12.71667 °
Contact angle

Temperature range
Tmin
-30 °C
Operating temperature min.
Tmax
120 °C
Operating temperature max.

Calculation factors
e
0.34
Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Y
Y
1.77
Dynamic axial load factor
Y0
0.97
Static axial load factor

Your current product variant
Tolerance classABMA4Class 4 (ANSI/ABMA 19.2:2013)
Heat treatmentStandard
CageStandardSheet steel cage, window cage, roller-guided
Quality levelHH
Number of rolling element rows1Single-row design
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